View.CurrentObject Property

Specifies a View‘s current object.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v18.2.dll

Declaration

C#

public virtual object CurrentObject { get; set; }

VB.NET

Public Overridable Property CurrentObject As Object

Property Value

Type	Description
Object	An object representing the current View’s current object.

Remarks

The example below demonstrates how to set a Contact‘s FirstName value to the NickName property via a SimpleAction.

C#

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Actions;
using DevExpress.Persistent.Base;
using MainDemo.Module.BusinessObjects;
// ...
public class SetNickNameController : ViewController {
    public SetNickNameController() {
        SimpleAction setNickNameAction = new SimpleAction(this, "SetNickName", PredefinedCategory.Edit);
        setNickNameAction.Execute += SetNickNameAction_Execute;
    }
    private void SetNickNameAction_Execute(object sender, SimpleActionExecuteEventArgs e) {
        Contact currentObject = View.CurrentObject as Contact;
        if(currentObject != null) {
            currentObject.NickName = currentObject.FirstName;
        }
    }
}

VB.NET

Imports DevExpress.ExpressApp
Imports DevExpress.ExpressApp.Actions
Imports DevExpress.Persistent.Base
Imports MainDemo.Module.BusinessObjects

Public Class SetNickNameController
    Inherits ViewController
    Public Sub New()
        Dim setNickNameAction As New SimpleAction(Me, "SetNickName", PredefinedCategory.Edit)
        AddHandler setNickNameAction.Execute, AddressOf SetNickNameAction_Execute
    End Sub
    Private Sub SetNickNameAction_Execute(ByVal sender As Object, ByVal e As SimpleActionExecuteEventArgs)
        Dim currentObject As Contact = TryCast(View.CurrentObject, Contact)
        If currentObject IsNot Nothing Then
            currentObject.NickName = currentObject.FirstName
        End If
    End Sub
End Class

This property returns null and is intended to be overridden in View descendants. See ListView.CurrentObject and DetailView.CurrentObject.

For additional information, refer to the How to: Access Objects Selected in the Current View help topic.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the CurrentObject property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XAF_how-to-copy-last-entered-values-into-a-newly-created-object-when-using-the-save-and-new-e2484/CS/NewObjectInit.Module/NewValuesController.cs#L23

void Frame_ViewChanged(object sender, ViewChangedEventArgs e) {
    if(person != null && View.CurrentObject != null && View.CurrentObject.GetType() == typeof(Person)) {
        Person current = (Person)View.CurrentObject;

XAF_how-to-create-information-panels-e2690/CS/InfoPanels.Module.Win/Controllers/InfoPanelViewControllerWin.cs#L40

label.Text = "The current View is " + View.Caption;
if (View.CurrentObject != null) {
    label.Text += System.Environment.NewLine +

XAF_how-to-adjust-the-size-of-pop-up-dialogs-e4208/CS/PopupSizeExample.Module.Win/Controllers/CustomizeFormSizeController.cs#L26

private bool YourCustomBusinessCondition(View view) {
    return view != null && view.CurrentObject is IFormSizeProvider;
}

XAF_how-to-access-a-nested-listview-from-the-parent-detailviews-controller-and-vice-versa-e3977/CS/WinExample.Module/Controllers/AccessParentDetailViewController.cs#L42

public DomainObject2 CurrentObject {
    get { return (DomainObject2)View.CurrentObject; }
}

XAF_how-to-show-an-xtrareport-created-at-design-time-without-the-use-of-xaf-reports-module-e4752/CS/NativeXtraReportExample.Module.Win/Controllers/ShowXtraReportController.cs#L40

void showReportWithParameters_Execute(object sender, PopupWindowShowActionExecuteEventArgs e) {
    var parameters = e.PopupWindow.View.CurrentObject as ReportParameters;
    CriteriaOperator criteria = new BinaryOperator("Deadline", parameters.DeadlineBefore, BinaryOperatorType.Less);

VB.NET

XAF_how-to-copy-last-entered-values-into-a-newly-created-object-when-using-the-save-and-new-e2484/VB/NewObjectInit.Module/NewValuesController.vb#L25

Private Sub Frame_ViewChanged(ByVal sender As Object, ByVal e As ViewChangedEventArgs)
    If person IsNot Nothing AndAlso View.CurrentObject IsNot Nothing AndAlso View.CurrentObject.GetType() Is GetType(Person) Then
        Dim current As Person = CType(View.CurrentObject, Person)

XAF_how-to-adjust-the-size-of-pop-up-dialogs-e4208/VB/PopupSizeExample.Module.Win/Controllers/CustomizeFormSizeController.vb#L28

Private Function YourCustomBusinessCondition(ByVal view As View) As Boolean
    Return view IsNot Nothing AndAlso TypeOf view.CurrentObject Is IFormSizeProvider
End Function

XAF_how-to-create-information-panels-e2690/VB/InfoPanels.Module.Win/Controllers/InfoPanelViewControllerWin.vb#L39

label.Text = "The current View is " & View.Caption
If View.CurrentObject IsNot Nothing Then
    label.Text &= System.Environment.NewLine & "The current object is " & View.CurrentObject.ToString()

XAF_how-to-access-a-nested-listview-from-the-parent-detailviews-controller-and-vice-versa-e3977/VB/WinExample.Module/Controllers/AccessParentDetailViewController.vb#L45

Get
    Return CType(View.CurrentObject, DomainObject2)
End Get

XAF_how-to-show-an-xtrareport-created-at-design-time-without-the-use-of-xaf-reports-module-e4752/VB/NativeXtraReportExample.Module.Win/Controllers/ShowXtraReportController.vb#L42

Private Sub showReportWithParameters_Execute(ByVal sender As Object, ByVal e As PopupWindowShowActionExecuteEventArgs)
    Dim parameters = TryCast(e.PopupWindow.View.CurrentObject, ReportParameters)
    Dim criteria As CriteriaOperator = New BinaryOperator("Deadline", parameters.DeadlineBefore, BinaryOperatorType.Less)